The ratio of a to b is 6 to 1. and the ratio of b to c is 12 to 1. What is the value of 2a + 3b / 4b + 3c A. 3/8
B. 5/17
C. 16/17.
D. 60/17
E. 48/7

Me because some of question i don’t understand

Use the formulas a = x 2 – y 2, b = 2xy, c = x 2 + y 2 to answer this question. one leg of a right triangle has length 11 and all sides are whole numbers. find the lengths of the other two sides. the other leg = a0 and the hypotenuse = a1

Acabinmaker buys 3.5 liters of oat varnish the varnish cost $4.95 per liter what is the total cost of 3.5 liters